September Weather in Carnoustie, United Kingdom

Last updated: March 17, 2025

September in Carnoustie, United Kingdom, experiences a mild and somewhat wet climate, making it a unique month for visitors. The maximum temperature hovers around 21°C (70°F), while the average cools to 13°C (56°F). Nights can be brisk, with lows dipping to 5°C (41°F). Rainfall is a notable aspect of this month, with 66 mm (2.6 in) of precipitation spread over 13 days, contributing to a high humidity level of 90%. This mixture of weather conditions creates a lush, vibrant landscape, perfect for exploring the scenic beauty and rich history of the area.

September Temperature in Carnoustie

In September, Carnoustie experiences a gentle transition into autumn, with temperatures reflecting a mild climate. The minimum temperature hovers around 5°C (41°F), while the average settles at a comfortable 13°C (56°F). Daytime highs can reach up to 21°C (70°F), hinting at a lingering warmth from summer. This month marks a noticeable shift from the warmth of August, but the temperatures remain relatively stable, providing a pleasant backdrop for outdoor activities. As the month progresses, you can expect cooler evenings, making it ideal for cozy gatherings and enjoying the beautiful Scottish scenery. Overall, September serves as a bridge between the vibrant summer months and the crispness of autumn, inviting visitors to embrace the charm of Carnoustie in this transitional period.

September Weather in Carnoustie: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Carnoustie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414143455155595955514642
Data source: Temperature data for Carnoustie generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Carnoustie

In September, Carnoustie experiences a moderate precipitation amount of 66 mm (2.6 in), falling over an average of 13 days. This marks a slight decrease from the preceding months of August and July, which typically feature heavier rainfall, suggesting a gradual easing of summer storms. With the cooler temperatures of autumn approaching, this blend of rainfall keeps the landscape lush while hinting at the more significant downpours expected in October ahead. Such patterns indicate a transition toward the wetter conditions characteristic of the fall season, reminding residents of the ongoing ebb and flow of British weather.

September Precipitation Trends in Carnoustie

The chart displays monthly precipitation patterns in Carnoustie, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec4989723267737983661109589
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Carnoustie

September in Carnoustie, United Kingdom, heralds a notable rise in humidity, peaking at 90%. As summer transitions to autumn, this month's humidity surpasses the consistently elevated levels of the preceding months, particularly the 86% seen in both July and August. This marked increase aligns with the trend of gradually higher humidity levels as the year progresses, culminating in the even higher averages of late autumn. The shift from summer warmth to cooler, wetter weather further contributes to the noticeable moisture in the air, setting the stage for the wettest months ahead, as October and November follow with humidity levels of 91% and 92% respectively.

September Average Humidity in Carnoustie

This chart illustrates the average monthly humidity levels in Carnoustie, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%82%84%86%86%90%91%92%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Carnoustie

As September rolls into Carnoustie, the UV Index settles at 5, indicative of a moderate exposure category that allows for a burn time of approximately 30 minutes. This marks a gentle decline from the summer months, where the Index peaked at 8 in June. As days grow shorter and cooler, the sun remains bright enough to require some precaution, particularly during midday hikes or beach outings. While the risk of sunburn increases as the UV Index climbs in the earlier months, September offers a balance, making it a great time for outdoor activities with mindful sun protection. For further insights on UV levels throughout the year, visit Carnoustie UV Index.

Maximum UV Index Levels in Carnoustie for September

The chart shows the monthly maximum UV Index (UVI) for Carnoustie in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec123568765311
Data source: Carnoustie September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Carnoustie

September in Carnoustie, United Kingdom, brings a delightful blend of autumn hues and ample sunshine, with 305 hours of bright daylight illuminating the landscape. Following the sunniest months of July and August, which boast around 420 and 375 hours respectively, September marks a gentle decline yet remains one of the most luminous months of the year. This transition into autumn sees daylight gradually diminishing, as October nudges down to 221 hours, but still offers a vibrant setting perfect for outdoor exploration. As summer gives way to fall, the warmth of September invites visitors to relish the stunning coastal scenery before the shorter days set in.

Monthly Sunshine Duration in Carnoustie: September Highlighted

The September sunshine duration represents the total number of hours Carnoustie experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec86h142h218h344h412h396h420h375h305h221h116h86h
Data source: Carnoustie September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Carnoustie During September

While September in Carnoustie, United Kingdom, may not bask in the brightest sunshine, it does exhibit a moderate charm in its weather patterns. With a 23% chance of sunny days, this month marks a slight dip from the warmer summer months, where sunshine chances hover around the 26-29% range. Interestingly, as summer fades, the likelihood of sunny skies lingers behind, contrasting with the increased chances seen in April and November. Despite its comparatively lower sunshine percentages, September offers a gentle transition towards autumn, where bursts of sunshine can still surprise residents and visitors alike.

Percentage of Sunny Days in September in Carnoustie

The chart illustrates the percentage of sunny days in Carnoustie throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Carnoustie experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%28%24%49%26%27%29%26%23%23%35%22%
Data source: Carnoustie September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Carnoustie in September

As summer fades into autumn, September in Carnoustie sees a notable transition in daylight, offering about 12 hours of light each day. This decline from the sun-soaked heights of June's 17 hours signals the gradual approach of shorter days. Following a peak in May and June, where daylight reaches its zenith, the duration begins to wane, cascading down to 15 hours in August and subsequently to 12 hours in September. This month provides a balanced blend of warmth and twilight, allowing residents and visitors to relish the last vestiges of summer's glow before the crispness of autumn truly sets in.

Average Daylight Hours in Carnoustie for September

The chart illustrates the variation in daylight duration in Carnoustie throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 34m9h 32m11h 53m14h 17m16h 26m17h 37m16h 59m15h 1m12h 41m10h 18m8h 8m6h 55m
Data source: Carnoustie daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Carnoustie

As September rolls into Carnoustie, the coastal winds begin to pick up slightly, with an average speed of 3.8 m/s (8 mph). This marks a gentle transition from the lighter breezes of summer, which saw an average of just 2.8 m/s (6 mph) in July. While the winds remain relatively mild compared to the stronger gusts of late autumn, September's breezes can evoke a refreshing change, hinting at the cooler months ahead. In contrast to the spring months where March and April exhibited notable bursts of wind, September provides a harmonious balance, offering a softer welcome to fall while still retaining the characteristic charm of the Scottish coast. As we anticipate October's invigorating 5.3 m/s (12 mph) winds, September serves as a delightful bridge, gently teasing the more dynamic weather patterns to come.

Average September Wind Speed in Carnoustie

The chart displays monthly wind speed patterns in Carnoustie, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.66.85.13.73.84.12.83.13.8 m/s5.35.74.7
Data source: Carnoustie September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Carnoustie Compares to Other Months

The weather in Carnoustie changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Carnoustie and find detailed weather information for every month.

In September, the weather is generally milder, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F) and an average of 13°C (56°F). The month experiences higher precipitation, totaling 66 mm (2.6 in) across about 13 days, and a humidity level of 90%. In contrast, January brings much colder conditions, with temperatures dropping to a minimum of -3°C (27°F) and peaking at 13°C (56°F), averaging 5°C (41°F). Precipitation in January is lower at 49 mm (1.9 in) over approximately 11 days, with humidity slightly decreasing to 89%. For more detailed insights, check out Carnoustie weather in January.

In comparing the weather between September and February, notable differences emerge. September features milder temperatures, with averages around 13°C (56°F) and maximums reaching 21°C (70°F), accompanied by a relatively high humidity of 90%. The month experiences 66 mm (2.6 in) of precipitation spread over 13 days. In contrast, February is considerably colder, with average temperatures dropping to 5°C (42°F) and maximums only reaching 13°C (56°F). This winter month sees increased precipitation, totaling 89 mm (3.5 in) over 14 days, with humidity slightly lower at 88%. For a more detailed look at February’s climate, check out Carnoustie weather in February.

When comparing the weather in September and March, notable differences emerge. September boasts milder temperatures, with averages around 13°C (56°F) and maximums reaching 21°C (70°F), while March experiences cooler conditions, with average temperatures of 6°C (43°F) and maximums at 15°C (59°F). Both months see a similar amount of precipitation, with September recording 66 mm (2.6 in) and March slightly higher at 71 mm (2.8 in), each experiencing rain on about 13 days. Humidity levels are slightly higher in September at 90%, compared to 86% in March. For more detailed information on March conditions, check out this link: Carnoustie weather in March.

When comparing the weather in September and April, notable differences emerge. September typically enjoys milder temperatures, with an average of 13°C (56°F), fluctuating between a minimum of 5°C (41°F) and a maximum of 21°C (70°F). In contrast, April is cooler, averaging around 7°C (46°F) and experiencing minimum temperatures as low as -2°C (28°F) and a maximum of 18°C (65°F). Precipitation is also more frequent in September, averaging 66 mm (2.6 in) over 13 days, while April sees lower rainfall at 32 mm (1.2 in) across just 7 days. Additionally, September has a higher humidity level at 90%, compared to April's 84%. For a detailed look at April conditions, you can visit Carnoustie weather in April.

In comparing the weather between September and May, we see some notable differences. September typically enjoys a slightly warmer temperature range, with average highs reaching 21°C (70°F) compared to May's maximum of 20°C (69°F). However, May features cooler minimum temperatures of 1°C (35°F) compared to September's milder 5°C (41°F). Both months experience similar precipitation levels, with September receiving 66 mm (2.6 in) and May slightly higher at 67 mm (2.7 in), and both months have about 13 days of rain. Humidity levels are also higher in September at 90% compared to 82% in May, making September feel more humid overall. For more detailed information, you can check Carnoustie weather in May.

When comparing the weather in September and June, both months exhibit similar temperature patterns, with minimums around 5°C (41°F), average temperatures at 13°C (56°F), and maximums reaching approximately 21°C (70°F). However, September tends to experience slightly higher humidity at 90%, compared to June’s 84%, which can make September feel a bit more muggy. Precipitation levels also differ slightly, with September receiving 66 mm (2.6 in) across 13 days, while June has 73 mm (2.9 in) over 12 days. For more detailed insights on June weather conditions, you can check out Carnoustie weather in June.

In comparing the weather of September and July, we observe notable differences in temperature and precipitation. September experiences a cooler climate, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F) and an average of 13°C (56°F). In contrast, July is generally warmer, featuring a minimum of 8°C (47°F), a maximum of 24°C (75°F), and an average of 15°C (59°F). Additionally, September has higher humidity levels at 90% compared to July’s 86%. Precipitation also varies, with September receiving 66 mm (2.6 in) over 13 days, while July sees slightly more with 79 mm (3.1 in) over 15 days. For further details, you can check Carnoustie weather in July.

In comparing the weather of September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F), while August offers milder conditions, featuring a minimum of 7°C (45°F) and a maximum of 22°C (71°F). Additionally, September experiences more precipitation, totaling 66 mm (2.6 in) over 13 days, compared to August's 83 mm (3.2 in) across 14 days. Interestingly, September also exhibits a higher humidity level at 90% compared to August's 86%. For more details on August weather, you can check Carnoustie weather in August.

September and October exhibit a noticeable shift in weather patterns. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 21°C (70°F), with an average of 13°C (56°F). The month sees 66 mm (2.6 in) of precipitation over 13 days, while humidity remains high at 90%. In contrast, October experiences cooler temperatures, with a minimum of 2°C (35°F), an average of 10°C (51°F), and a maximum of 17°C (64°F). Additionally, October is wetter, with 110 mm (4.3 in) of rainfall spread over 16 days, and humidity levels just slightly higher at 91%. For more insights, check out Carnoustie weather in October.

In September, temperatures in Carnoustie range from a mild minimum of 5°C (41°F) to a pleasant maximum of 21°C (70°F), with an average of around 13°C (56°F). The weather remains relatively humid at 90%, with about 66 mm (2.6 in) of precipitation spread over 13 days. In contrast, November brings cooler conditions, with temperatures dipping to a minimum of -2°C (29°F) and a maximum of 14°C (58°F), averaging 8°C (46°F). Humidity slightly increases to 92%, and precipitation elevates to 95 mm (3.7 in) over 14 days. For a detailed look at what to expect, check out Carnoustie weather in November.

In September, the weather is generally milder, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F), averaging around 13°C (56°F). The month experiences about 66 mm (2.6 in) of precipitation over approximately 13 days, accompanied by high humidity at 90%. In contrast, December brings colder temperatures, with a minimum dipping to -4°C (25°F) and an average of 6°C (42°F), peaking at 13°C (55°F). Precipitation increases to 89 mm (3.5 in) over 14 days, and humidity remains relatively high at 88%. For more detailed insights on December weather conditions, visit Carnoustie weather in December.

Compare Carnoustie's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Carnoustie

As September rolls in, Carnoustie's weather presents a notable shift from the summer's warmth, embracing a more chilly, humid atmosphere that sets the stage for the autumnal season. Temperatures fluctuate more dramatically, with cool mornings and mild afternoons, while rainfall becomes more frequent, contributing to the lush landscape the region is known for. With nearly half the month seeing precipitation, visitors can expect an ever-changing sky, ideal for those who enjoy the dramatic beauty of Scotland’s coastal weather. For a deeper insight into how these conditions compare throughout the year, check out Carnoustie Climate.